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ASoC: SOF: Intel: refactor i915_get/put functions

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The current interface to control i915 display power is misleading.
The hda_codec_i915_get() and hda_codec_i915_put() names suggest
a refcounting based interface. This is confusing as no refcounting
is done and the underlying HDAC library interface does not support
refcounts eithers.

Clarify the code by replacing the functions with a single
hda_codec_i915_display_power() that is aligned with
snd_hdac_display_power().

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200120160117.29130-2-kai.vehmanen@linux.intel.com
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kai Vehmanen 2020-01-20 18:01:15 +02:00 committed by Mark Brown
parent e91440ddfb
commit 23ee09032d
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 10 additions and 20 deletions
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21
sound/soc/sof/intel/hda-codec.c
View File

@ -170,23 +170,14 @@ EXPORT_SYMBOL_NS(hda_codec_probe_bus, SND_SOC_SOF_HDA_AUDIO_CODEC);
#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \
IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)
void hda_codec_i915_get(struct snd_sof_dev *sdev)
void hda_codec_i915_display_power(struct snd_sof_dev *sdev, bool enable)
{
struct hdac_bus *bus = sof_to_bus(sdev);
dev_dbg(bus->dev, "Turning i915 HDAC power on\n");
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true);
dev_dbg(bus->dev, "Turning i915 HDAC power %d\n", enable);
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, enable);
}
EXPORT_SYMBOL_NS(hda_codec_i915_get, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
void hda_codec_i915_put(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
dev_dbg(bus->dev, "Turning i915 HDAC power off\n");
snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
}
EXPORT_SYMBOL_NS(hda_codec_i915_put, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
EXPORT_SYMBOL_NS(hda_codec_i915_display_power, SND_SOC_SOF_HDA_AUDIO_CODEC_I915);
int hda_codec_i915_init(struct snd_sof_dev *sdev)
{
@ -198,7 +189,7 @@ int hda_codec_i915_init(struct snd_sof_dev *sdev)
if (ret < 0)
return ret;
hda_codec_i915_get(sdev);
hda_codec_i915_display_power(sdev, true);
return 0;
}
@ -209,7 +200,7 @@ int hda_codec_i915_exit(struct snd_sof_dev *sdev)
struct hdac_bus *bus = sof_to_bus(sdev);
int ret;
hda_codec_i915_put(sdev);
hda_codec_i915_display_power(sdev, false);
ret = snd_hdac_i915_exit(bus);

2
sound/soc/sof/intel/hda.c
View File

@ -380,7 +380,7 @@ static int hda_init_caps(struct snd_sof_dev *sdev)
/* create codec instances */
hda_codec_probe_bus(sdev, hda_codec_use_common_hdmi);
hda_codec_i915_put(sdev);
hda_codec_i915_display_power(sdev, false);
/*
* we are done probing so decrement link counts

7
sound/soc/sof/intel/hda.h
View File

@ -586,15 +586,14 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev);
(IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \
IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))
void hda_codec_i915_get(struct snd_sof_dev *sdev);
void hda_codec_i915_put(struct snd_sof_dev *sdev);
void hda_codec_i915_display_power(struct snd_sof_dev *sdev, bool enable);
int hda_codec_i915_init(struct snd_sof_dev *sdev);
int hda_codec_i915_exit(struct snd_sof_dev *sdev);
#else
static inline void hda_codec_i915_get(struct snd_sof_dev *sdev) { }
static inline void hda_codec_i915_put(struct snd_sof_dev *sdev) { }
static inline void hda_codec_i915_display_power(struct snd_sof_dev *sdev,
bool enable) { }
static inline int hda_codec_i915_init(struct snd_sof_dev *sdev) { return 0; }
static inline int hda_codec_i915_exit(struct snd_sof_dev *sdev) { return 0; }